Motor-cycle.



F. S. ELLETT.

MOTOR CYCLE.

APPLICATION FILED JUNE x6. 19m

1,258,547. Patented Mar. 5, 1918.

FREDERICK s. ELLETT, oF ELMIBA, NEW YORK.

MOTORCYCLE.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Original application filed .T anuary .9, 1913,\.Sera1 No. 741,089. ADivided .and this application filed ,Tune 16,

1916. Serial No. 194,015.

.To all '1v/mm. t 91mg/ concer/L.'

Be it known that l, Fnnmanicii S. ISlLLETT, a citizen ot the United States, and resident ot Elmira. Chemung county, State of New York, hare invented certain new and useful linprm'ements in Motor-Cycles, of which the following is a specification.

This .invention vwhich is a division ot my application No. 741,089, filed January 9, 1913, relates to motor cycles and more particularlrv to the construction ol the driving' Wheel hub thereof. The objects oi the invention are to provide such a hub equipped with a back pedaling bra ke at one end and at the other end a tree Wheel which may be looked to the barrel by a `friction clutch. In motor clvcle construction there are conditions which restrict the length ot' the hub and it hasbeen impracticable in the constructions.heretofore used to combine a brake, and a tree Wheel, arranged exteriorly of the hub bearings, lwhere they are readily accessible and may he adjusted or repaired Without `cilistmfbing the hub bearings. i\ccordingto thisinven# tion `it practicable to equip the hub with a brake arranged at `one end ot' the same und Va 'tree wheel and clutch arranged at the other end, by transmitting; all of the forces which resist turning of certain parts ot thelb 1alte, to the 'trame at the free Wheel end of the hub.

These and other .features of the invention will `be described in `connection with the drawing and pointed out in the appended claims.

ln the d 'airing thesingle :tigureis a lon- `cntudinal sectional view ot the lpreferred embodiment of the inrentiol'i.

The mechanism comprises an axle member 10 haring the threaded ends 11 andlQ. A tubular member engages the threaded end .11 at `76 and a bearing member 14; engages the end 1Q. A second tubular member 15 is arranged on the aXlelO and a driving ineinber 16 which has secured thereto a sprocket 17 is rotatably supported on the bearing member 14. The members 72 and 15 are provided with interlocking teeth or projections 18 on their adjacent ends, and the outer end 81 of the member 72 is ,made aiigular in form' and has fitted thereon an arm SQuvhich is secured to the frame ol theinotor cycle and holds the members 72 and 15 against rotation. The outer side of the inember 15 is provided With a ieCeSS 2l intofwhieh extends the exteriorly threaded extension 2Q of the driving member 16. The outer'side of the drivingmember 1G is recessed to form a space tor the balls Q3 vwhich are arranged between the driving member and the bearing member le and term ,a thrust bearing adapted to take up the outward thrust on the driving' member. A bearing rino' 2st engages .the inner end oit the extension 2,2 and between this ring and the member 15 is a cage 2st having arranged therein the balls 24J, which transmit thrust from thedriving member to the member 15.

A `hub barrel Q5 i5 rotatably mounted on the .ball bearings Q7 and 7-1, arranged on the members 15 and 72 respectively. The ball bearing'7et includes the race 7 formed in the member 72 and Ythe outer ring 75 which is threaded yinto the hub as ,at 105. The barrel 2.5 is provided with the ,flanges 2S to which the spokes of the wheel may. be attached. l

A member or casing-52 is Vsecured on one end of the barrel in any suitable manner, as Vb v means of `the nut 53 .and carries an end plate 5l which ,is secured thereto by the screw threads or inany other suitable manner. The axially extendingytlange 5G ot' theinember 5'2 is provided with internal recesses or keyways ,57 which receive thek outward projections on the friction disks 58 and thus cause these disks torotate with the wheel.

The member 15 is provided with a series of external longitudinally extending grooves or lceyways 59 which receive the inward projections 60 on the ring 6l,.this .ring being provided with the axially extending tlangei' andthe radially extending flange 63. The ring v61'is lalso Vprovided with grooves or keynays 64k .which receive the .inward projections. on the friction disks 65 and the ringer plate 66, the latter engaging the, flange 63 and being held thereby against axial movement in an outward direction, on the ring 61.

An internally threaded sleeve-67 engages the threaded extension Q2 on the driving member 16 and -is provided with ai radial ,tlang'eGS havinga circumferential extension 69: which engagesl the outery side ofthe. ring 61. A spring 70 having one end .thereofsecured to the `sleeve 67 arranged; between thelatter and the inner Wall offthememher 1.5,.and bea-rs ,againstthe .latt'enithns forming a frictional retarding means for the sleeve 67. Y

The periphery of the iiangc 68 is conical in form and adapted to engage the conical inner surface of the plate 54@ to form a friotional driving connection between the sleeve 137 and the hub barrel 25n The mechanism just described constitutes a Coaster or back pedaling brake which 'is operated ,as follows: ,The sprocket 17 is driven by means of a chain :from the usual pedals,l with `which motor cycles are pron vided and by rotatingthe member lGlin one direction the sleeve 67 will ,be moved into engagementwith the plate Vandform a driving` connection between the member 16 and the hub barrel 25, whereby the motor cycle `may be operated by means of the pedals. When the member i6 isr rotated in the opposite `direction by backpedaling, the sleeve 67 is caused to move inwardly and carries with it the ringvhthereby compress-4 ing the friction disks between the member 52 and thek disk 66. Since 'the disks 65 are held against rotation, the hub barrel will be retarded by the frictional,"engagement of these disks with the disks 57. l

`it the end of the hub, opposite the back pedaling brake a free wheel is adapted to be 4"connected to the hub, to drive the latter, by means of a clutch. The aXle member has arranged thereon a nut or collar 77 which lits on the interior of the member 72 and thus supports therlatter. 'Ihe axle member 110 is secured to Aa frame member 78 in any preferred manner, as for example, by means of the nut 7 9, between which `and" the collar 77, theA flattened `portion `80 `of the frame member is clamped. y At its outer end the member 72 is preferably formed with an angular portion Si on which is mounted an arm 82, this arm being secured to the frame member 78 as shown at 83, and thus holding the member 72 against rotation. y

A sleeve 8d is secured to the end of the hub 25 and has arranged thereon sets of balls and 8G, on which is mounted the wheeli87. The wheel 87 carriesfon its inl terior the friction disks 88 which coperate with the disk A89 and theplates 90 and 91 to form a ldriving connection betweenv the wheel and the 'hubbarrel Thejplates 99 'and 91 are secured on the sleeve S4 but the plate 91 is vfree to move axially on the sleeve. Springs, which are arranged in a circle and one of which is shown at 92, bear against the plate 91 and abutments 93 carried by Y `screws or pins 9st which' are secured in the connected with the plate 91 by pins 96 which pass through suitable openings in the plate 90. The member 72 has arranged on `the exterior thereof the screw threads 9T which. are engaged by the internally threaded sleeve or nut 98. Balls 99 are arranged between the plate 95 and a radially extending flange l0() on the sleeve. 9S and thus provide a thrust bearing between these parte. An actuating arm V191 is secured to the flange and arranged to be actuated by a member 1a02 which is oonnected with a pivot 193 carried by the arm.

ris thus constructed the springs 92 normally hold the friction disks in gripping engagement so that the wheel 87 is locked to the hub member 25. Whenit is desired to ungrip theclutch members the sleeve 98 is turned onthe member 7 2 and thus caused .to move `axially thereon and carry withfit the plates 91 and 95, whereby the springs 92 are compressed and the frictiondisks per#A mitted to become disengaged. By turning the sleeve 98 in theopposite direction the springs 92 will again move the friction disks into gripping engagement and lock the wheel 87 to the hub member.

From the above, it will be seenthat I have provided a hub construction embodying va coaster brake and a clutch which are inde` pendently operable and which are also areV scope of the appended claims andfsince` the constructionshown and described is merely illustrative of one form in which' the invention may be embodied, I do not wish to be limited to these precise details.

Having thus describedthe invention, what is claimed and desiredftobe secured by Letters Patent is: y f

1. In a motorcycle, the combinationfof a stationary axle member, 'ahub barrel rotatably mounted on opposed bearings at the ends thereof, a friction member carried by said barrel at oneend thereof,l a "coperat ing friction member, meansse'cu'red at the opposite end of saidbarrel and connected therethrough with4 said cooperating frictionV member to hold the latter against ro tation, a back pedaling -device at the end of said barrel adjacent said friction mem? bers for effecting a gripping and ungripping of the friction members, a driving member at the opposite end of the hub and rotatable relative to the hub, and means ad iaoeni' lille di'ivinjr member 'for Ylooking the latter tio the indo.

in n motor cycle. ille eomljiination oi a stationary arde member. a 1mb barrel roi'zxlab!) mounted on opposed bearings at the onde thereof, a :friction member carried by said barrel alt one end thereof", exteriorly oi: l'he nnb bearings7 a eopernlinir non-rotin *fable 'frieiioi'lVmember, a bark pedaiiiig devine ai' the end oi: said barrel adjacent said 'friction members 'for e'iii'eeting a gripping and nngripping' o iiie 'friction members. a driving' member at i'llo opposite end of the hub and rotatable relative to die hub, and 'I'rieion means -for lookingl Said driving member to i'he nnb.

In a motor cycle, the combination of a siationary axle member,a hub barrel rotatvely mounted and surrounding said axle, a hack pedaling brake arranged at one end. oi the nnb barrel and operatively connected ti'ierewith, a device extending throngl'l the 1mb barrel and non-rotaivim1y connected to, one member of the brake and held against rotation at the opposite end of the hub barrel, a driving member l'otatively mounted on The hub, clutch means 'for connecting the driving' member to the hub, and means for Controiiing 'the clutch, mounted on the said device.

In testimony whereof I affix my signature.

FREDERICK S. LLETT.

Home@ oi.' this partent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

